/Engine/Source/Runtime/ApplicationCore/Public/GenericPlatform/Accessibility/GenericAccessibleInterfaces.h
Retrieves the focused accessible widget for a user. If the passed in user index is not registered with an accessible user registry, nullptr will be returned.
The accessible widget that is focused by the accessible user. Returns nullptr if the accessible user index does not correspond to a registered accessible user.
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IAccessibleWidget](API\Runtime\ApplicationCore\GenericPlatform\Accessibility\IAccessibleWidget) > GetUserFocusedWidget ( const FAccessibleUserIndex UserIndex ) const